/* ============================================================
 * 智链米仓 · 前台布局样式（导航 / 页脚 / 悬浮部件）
 * 版权所有 (c) 2026 蓝河豚（T128.com）· 首次开发 2026-09-28
 * 依赖 tokens.css、app.css。
 * ============================================================ */

/* ---------- 顶部导航 ---------- */
.zm-navbar {
  position: sticky; top: 0; z-index: var(--zm-z-nav);
  display: flex; align-items: center; gap: var(--zm-sp-4);
  height: var(--zm-nav-h); padding: 0 var(--zm-sp-6);
  background: var(--zm-nav-bg); box-shadow: var(--zm-shadow-sm);
}
.zm-navbar .zm-brand {
  display: flex; align-items: center; gap: 9px;
  font-size: var(--zm-fs-xl); font-weight: 800; color: var(--zm-brand); white-space: nowrap;
}
.zm-navbar .zm-brand .zm-brand-logo {
  width: 32px; height: 32px; border-radius: var(--zm-radius-sm);
  background: linear-gradient(135deg, var(--zm-brand-400), var(--zm-brand-700));
  color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 16px;
}
.zm-navbar .zm-brand .zm-brand-img {
  height: 36px; width: auto; max-width: 180px; display: block;
  object-fit: contain; border-radius: var(--zm-radius-sm);
}
.zm-navbar .zm-brand .zm-brand-text {
  font-size: var(--zm-fs-xl); font-weight: 800; color: var(--zm-brand);
  letter-spacing: .5px; white-space: nowrap;
}
.zm-navbar .zm-nav-links { display: flex; gap: 2px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.zm-navbar .zm-nav-links::-webkit-scrollbar { display: none; }
.zm-navbar .zm-nav-links a {
  padding: 7px 13px; border-radius: var(--zm-radius-sm);
  font-size: var(--zm-fs-base); color: var(--zm-muted); white-space: nowrap;
  transition: all var(--zm-dur) var(--zm-ease);
}
.zm-navbar .zm-nav-links a:hover,
.zm-navbar .zm-nav-links a.is-active { background: var(--zm-hover); color: var(--zm-brand); }
.zm-navbar .zm-nav-right { display: flex; align-items: center; gap: var(--zm-sp-2); }
.zm-navbar .zm-nav-right .zm-btn { padding: 8px 15px; font-size: var(--zm-fs-sm); }
.zm-theme-toggle { font-size: 16px; line-height: 1; padding: 8px 10px; cursor: pointer; }
.zm-msg-dot {
  display: inline-block; min-width: 17px; height: 17px; line-height: 17px; padding: 0 4px;
  background: var(--zm-danger); color: #fff; border-radius: var(--zm-radius-pill);
  font-size: var(--zm-fs-xs); text-align: center; margin-left: 4px;
}

/* 主体容器（导航与页脚之间） */
.zm-main { flex: 1; }

/* ---------- 页脚 ---------- */
.zm-footer { background: #0b1230; color: #b8c4d8; margin-top: var(--zm-sp-8); }
.zm-footer-inner {
  max-width: var(--zm-container); margin: 0 auto; padding: var(--zm-sp-10) var(--zm-sp-5) var(--zm-sp-6);
  display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: var(--zm-sp-10);
}
.zm-footer h4 { color: #fff; font-size: var(--zm-fs-md); margin-bottom: var(--zm-sp-4); }
.zm-footer-brand { font-size: var(--zm-fs-xl); font-weight: 800; color: #fff; margin-bottom: var(--zm-sp-3); display: flex; align-items: center; gap: 9px; }
.zm-footer-brand .zm-brand-logo {
  width: 32px; height: 32px; border-radius: var(--zm-radius-sm);
  background: linear-gradient(135deg, #22d3ee, var(--zm-brand-500));
  display: inline-flex; align-items: center; justify-content: center; font-size: 16px;
}
.zm-footer-brand .zm-footer-logo {
  height: 38px; width: auto; max-width: 170px; display: block; object-fit: contain;
  border-radius: var(--zm-radius-sm); background: rgba(255,255,255,.94); padding: 3px 7px;
}
.zm-footer-brand .zm-footer-brand-text { font-size: var(--zm-fs-xl); font-weight: 800; color: #fff; letter-spacing: .5px; }
.zm-footer-desc { font-size: var(--zm-fs-sm); line-height: 1.9; color: #8ea0bd; }
.zm-footer-contact .ci { font-size: var(--zm-fs-sm); color: #9fb0cc; margin-bottom: var(--zm-sp-3); line-height: 1.8; word-break: break-all; }
.zm-footer-contact .ci a { color: #93c5fd; }
.zm-footer-qrs { display: flex; gap: var(--zm-sp-4); margin-top: var(--zm-sp-2); }
.zm-footer-qr { text-align: center; }
.zm-footer-qr img, .zm-footer-qr .qr-ph {
  width: 88px; height: 88px; border-radius: var(--zm-radius-sm);
  background: #fff; padding: 6px; display: block;
}
.zm-footer-qr .qr-ph { display: flex; align-items: center; justify-content: center; color: #94a3b8; font-size: var(--zm-fs-xs); }
.zm-footer-qr span { font-size: var(--zm-fs-xs); color: #8ea0bd; display: block; margin-top: 8px; }
.zm-footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); }
.zm-footer-bottom-inner {
  max-width: var(--zm-container); margin: 0 auto; padding: var(--zm-sp-4) var(--zm-sp-5);
  text-align: center; font-size: var(--zm-fs-xs); color: #7e8fab; line-height: 2;
  word-break: break-word;
}
.zm-footer-bottom-inner a { color: inherit; }
.zm-footer-beian {
  margin-top: 4px; display: flex; justify-content: center; align-items: center;
  flex-wrap: wrap; gap: 4px 18px;
}
.zm-footer-beian a { display: inline-flex; align-items: center; gap: 5px; }
.zm-footer-beian .zm-beian-icon { width: 14px; height: 14px; flex: 0 0 auto; }
@media (max-width: 640px) { .zm-footer-beian { gap: 4px 12px; } }

/* 邮件订阅条 */
.zm-newsletter-bar { background: linear-gradient(90deg, #102055, #15317c); border-bottom: 1px solid rgba(255, 255, 255, .06); }
.zm-newsletter-inner {
  max-width: var(--zm-container); margin: 0 auto; padding: var(--zm-sp-6) var(--zm-sp-5);
  display: flex; align-items: center; gap: var(--zm-sp-6); justify-content: space-between; flex-wrap: wrap;
}
.zm-newsletter-txt h4 { color: #fff; font-size: var(--zm-fs-lg); margin-bottom: 5px; }
.zm-newsletter-txt p { color: #93a4c6; font-size: var(--zm-fs-sm); }
.zm-newsletter-form { display: flex; gap: var(--zm-sp-2); flex: 1; max-width: 480px; min-width: 260px; }
.zm-newsletter-form input[type=email] {
  flex: 1; padding: 12px 16px; border-radius: var(--zm-radius-sm);
  border: none; font-size: var(--zm-fs-base); font-family: inherit;
}
.zm-newsletter-form button { padding: 0 26px; background: var(--zm-brand-600); color: #fff; border: none; border-radius: var(--zm-radius-sm); font-size: var(--zm-fs-base); font-weight: 600; cursor: pointer; }
.zm-newsletter-form button:hover { background: var(--zm-brand-700); }

/* ---------- 悬浮部件 ---------- */
.zm-fab {
  position: fixed; right: 18px; bottom: 22px; z-index: var(--zm-z-dropdown);
  display: flex; flex-direction: column; gap: 10px; align-items: flex-end;
}

/* ============================================================
 * 响应式
 * ============================================================ */
@media (max-width: 900px) {
  .zm-navbar { padding: 0 var(--zm-sp-3); height: 54px; gap: var(--zm-sp-2); }
  .zm-navbar .zm-brand { font-size: var(--zm-fs-md); }
  .zm-navbar .zm-nav-links a { font-size: var(--zm-fs-sm); padding: 6px 9px; }
  .zm-footer-inner { grid-template-columns: 1fr; gap: var(--zm-sp-6); }
}
@media (max-width: 600px) {
  .zm-navbar { padding: 0 var(--zm-sp-2); height: 50px; }
  .zm-navbar .zm-brand { font-size: var(--zm-fs-sm); gap: 6px; }
  .zm-navbar .zm-nav-links a { font-size: var(--zm-fs-xs); padding: 5px 7px; }
  .zm-navbar .zm-nav-right .zm-btn { padding: 6px 11px; }
}